Round block type graphite heat exchange equipment

Abstract

The utility model relates to round block type graphite heat exchange equipment which comprises a heat exchange main shell capable of containing a graphite round block, and cooling liquid covers are detachably connected to the axial upper end and the axial lower end of the heat exchange main shell. The ends, away from the heat exchange main shell, of the two cooling liquid covers are connected with a bottom input cover and a top output cover correspondingly. A cover body penetrating through the cooling liquid cover and communicating pieces inserted into the bottom face and the top face of the graphite round block are arranged in a cover cavity of the bottom input cover and a cover cavity of the top output cover correspondingly, so that independent material channels are separated in a cooling liquid flow guide cavity limited by the cover body. According to the heat exchanger, the assembly stability and the structural stability strength can be improved, and meanwhile the heat exchange efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of graphite heat exchange devices, and in particular to a circular block type graphite heat exchange device. Background Technology

[0002] Graphite heat exchange equipment refers to heat exchangers whose heat transfer components are made of graphite. This is because graphite has advantages such as good corrosion resistance, minimal scaling on the heat transfer surface, and excellent heat transfer performance. The working principle of a graphite heat exchanger is as follows: based on graphite's acid corrosion resistance and good thermal conductivity, graphite is used to create flow guiding devices. When two different media pass through each other, the high-temperature medium continuously transfers heat to the graphite heat exchanger, while the low-temperature medium continuously absorbs heat from the graphite heat exchanger, thus achieving heat exchange. Due to the characteristics of graphite, graphite heat exchangers are increasingly widely used in cold rolling pickling lines, chemical, petroleum, and pesticide industries. Conventional graphite heat exchangers use graphite blocks that can be classified into perforated block type, shell-and-tube type, and plate type according to their unit shape and structure. Perforated block type graphite heat exchangers are assembled from several perforated block-shaped graphite components. Shell-and-tube type graphite heat exchangers play an important role in graphite heat exchangers and are further divided into fixed and floating head types according to their structure.

[0003] For example, patent document CN221882255U discloses a circular block-type graphite heat exchanger, including a flow guiding component for guiding material; a heat exchange component disposed within the inner cavity of the flow guiding component for exchanging heat with the material guided by the flow guiding component; and an auxiliary component disposed on the bottom surface of the inner cavity of the flow guiding component, connected to the heat exchange component, and used to assist in the installation and fixation of the heat exchange component. The flow guiding component includes a shell, with an upper flange at the top opening and a lower flange at the bottom opening. A flow guiding gap is provided between the shell and the graphite block of this graphite heat exchanger, allowing coolant to flow laterally into the transversely opened material-liquid holes on the graphite block, thereby transferring heat from the inside of the graphite block. However, the lateral input of coolant suffers from uneven flow intensity. The directional flow of low-temperature coolant lacks the temperature difference impact of a shell-and-tube graphite heat exchanger, resulting in ineffective heat transfer in some areas, leading to uneven cooling and poor cooling efficiency. In particular, the relatively gentle lateral flow path of the coolant restricts its flow rate, preventing rapid replacement of coolant in some lateral material-liquid holes to ensure comprehensive heat exchange capacity. Finally, existing graphite blocks typically use PTFE sealing rings on overlapping contact surfaces, lacking lateral alignment and limiting structures. This results in low assembly precision and weak limiting stability, failing to guarantee relative stability of the overlapping contact surfaces. Especially when increasing coolant delivery rate and volume to improve cooling efficiency, lateral coolant flow is prone to lateral impact on the graphite blocks during flow fluctuations. This causes relative slippage and misalignment between overlapping graphite blocks, leading to misalignment of the material flow holes within the graphite blocks, reducing material delivery efficiency, and hindering material flow and continuous cooling. Utility Model Content

[0004] The purpose of this invention is to provide a circular graphite heat exchange device that can improve assembly stability and structural strength while enhancing heat exchange efficiency and quality. This addresses the problems of existing circular graphite heat exchange devices, such as poor heat exchange efficiency and quality, inability to uniformly and efficiently exchange heat with materials passing through the entire structure, poor assembly stability and strength of existing graphite blocks, inability to guarantee the sealing and unobstructed flow of the assembly channels, and susceptibility to slippage and other abnormalities caused by liquid flow fluctuations, which affect assembly accuracy and alignment of structural cavities, hindering high-intensity liquid flow and efficient heat exchange.

[0005] The technical solution adopted by this utility model is as follows: a circular graphite heat exchange device, including a heat exchange main shell capable of accommodating graphite spheres, coolant covers detachably connected to the upper and lower axial ends of the heat exchange main shell, and a bottom input cover and a top output cover respectively connected to the ends of the two coolant covers away from the heat exchange main shell. A cover body penetrating the coolant cover and a connecting member inserted into the bottom and top surfaces of the graphite spheres are provided in the cavities of the bottom input cover and the top output cover, so as to separate independent material channels in the coolant guide cavity defined by the cover body.

[0006] According to a preferred embodiment, the coolant cover includes a cover body, a first mating plate, and a first sealing ring, wherein the first mating plate is provided on the opening side of the coolant guide cavity defined by the cover body, and the first sealing ring, which can fill the cover buckle connection gap between the cover body and the heat exchange main shell, is embedded on the stepped annular surface of the cover body for defining its cover position relative to the heat exchange main shell.

[0007] According to a preferred embodiment, a plurality of first through-holes for inserting the connecting tubes of the connecting member are provided on the end face of the cover, and a sealing ring groove is also provided on the end face of the cover.

[0008] According to a preferred embodiment, a second through-hole for inserting the dividing connecting pipe is provided on the plate body of the first docking plate, and a coolant conduit is also inserted into the plate body of the first docking plate. A plurality of second through-holes are arranged circumferentially on the plate body of the first docking plate; a plurality of coolant conduits are arranged circumferentially on the plate body of the first docking plate, and the multiple sets of circumferentially spaced coolant conduits and second through-holes are staggered radially on the surface of the first docking plate.

[0009] According to a preferred embodiment, the surface of the first docking plate that contacts the graphite block away from the coolant guide cavity defined by the cover is further fitted with a stepped limiting collar that can limit the relative assembly position between the first docking plate and the graphite block; the plate body of the first docking plate is also provided with coolant delivery holes circumferentially spaced apart to connect the coolant guide cavity defined by the cover and the cooling gap between the graphite block and the heat exchange main shell.

[0010] According to a preferred embodiment, the connecting element includes a sealing gasket plate embedded in the opening surfaces of the bottom input cover and the top output cover, and a dividing connecting tube inserted into the sealing gasket plate by a ring-shaped dot matrix.

[0011] According to a preferred embodiment, the two covers connected to the top and bottom of the heat exchange main shell are respectively fitted with an upper coolant inlet and a lower coolant outlet that can communicate with the coolant guide cavity.

[0012] According to a preferred embodiment, the graphite block includes at least a first heat dissipation block and a second heat dissipation block that overlap each other, and the sides of the first heat dissipation block and the second heat dissipation block are fitted with limiting clips that can help limit the overlap state of the two.

[0013] According to a preferred embodiment, the first heat sink body has a plurality of downwardly inclined limiting holes spaced apart on its side near the second heat sink body, and the bottom surface of the first heat sink body facing the second heat sink body is provided with an inner sealing convex ring and an outer sealing concave ring.

[0014] According to a preferred embodiment, the second heat sink body has a plurality of upwardly inclined limiting holes spaced apart circumferentially on its side near the first heat sink body, and the top surface of the second heat sink body facing the first heat sink body is provided with an inner sealing concave ring and an outer sealing convex ring.

[0015] The beneficial effects of this utility model are:

[0016] The first and second heat sinks in this application utilize mating inner sealing convex and concave rings, as well as outer sealing concave and convex rings, to limit the overlap alignment accuracy while ensuring overlap stability. In particular, the mutually fitting S-shaped concave and convex ring surfaces effectively limit the contacting elements, preventing arbitrary lateral displacement. This ensures the accurate alignment of the material flow holes and coolant flow holes within the first and second heat sinks, avoiding misalignment and reducing the minimum cross-sectional size of the through-hole cavity to guarantee the smooth flow and capacity of material and coolant. Furthermore, this application sets both the material flow holes and coolant flow holes as vertical through-holes, thus avoiding potential flow fluctuations and impacts during lateral coolant flow, further enhancing connection stability. In addition, this application provides multiple limiting clips on the outer sides of the first heat sink and the second heat sink to ensure the connection stability of the overlapping assembly of the first heat sink and the second heat sink. The two inclined limiting pins provided by the limiting clips can be fully inserted into the downward limiting hole and the upward limiting hole under the push of the elastic abutment arc plate, thereby limiting the stability of the first heat sink and the second heat sink. The inclined limiting pins can force the first heat sink and the second heat sink to maintain the tendency of moving towards each other, so as to ensure the stability and strength of the overlapping docking.

[0017] The cover provided in this application offers a coolant flow chamber above the graphite disc, thereby improving the uniformity and intensity of coolant dispersion and flow, allowing the entire graphite disc to be cooled by more uniform heat transfer. The first connecting plate, in conjunction with the cover, ensures that the coolant flows into the graphite disc without gaps and in a generally uniform manner, further improving the uniformity and effectiveness of heat transfer and reducing the defects of uneven heating and poor cooling efficiency. In particular, the vertical orientation of the coolant flow channel allows the coolant to more fully and effectively absorb heat from the inside of the graphite disc, thus improving heat transfer efficiency. The opposite flow direction of the coolant and the material allows the coolant to absorb heat more effectively during the opposing flow, improving heat exchange efficiency. Especially, the top-down coolant flow ensures sufficient cooling of the material, allowing it to be cooled by the progressively descending heat-absorbing structure. Top-down coolant has strong flow capacity and gravity-driven properties, which accelerates its flow and increases its flow rate. This effectively reduces coolant stagnation, allowing the coolant to maintain a lower temperature, fully and efficiently transfer heat, improve the coolant's continuous turnover rate, and ensure the coolant's overall heat exchange capacity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a preferred circular block graphite heat exchange device proposed in this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of a preferred circular block-type graphite heat exchanger proposed in this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the top output cover and connecting parts of a preferred circular block graphite heat exchanger proposed in this utility model.

[0021] Figure 4 This is a cross-sectional schematic diagram of the bottom input cover of a preferred circular graphite heat exchanger proposed in this utility model;

[0022] Figure 5 This is a plan view of the first docking plate of a preferred circular block graphite heat exchange device proposed in this utility model;

[0023] Figure 6 This is an enlarged structural diagram of region A of a preferred circular block graphite heat exchange device proposed in this utility model;

[0024] Figure 7 This is a partial structural schematic diagram of the first heat dissipation block of a preferred circular graphite heat exchange device proposed in this utility model;

[0025] Figure 8 This is a partial structural schematic diagram of the second heat dissipation block of a preferred circular graphite heat exchange device proposed in this utility model.

[0026] List of reference numerals

[0027] 1: Heat exchange main housing; 2: Graphite cylinder; 3: Coolant cover; 4: Bottom inlet cover; 5: Top outlet cover; 6: Connecting component; 7: Upper coolant inlet; 8: Lower coolant outlet; 21: First heat sink block; 22: Second heat sink block; 23: Limiting clip; 211: Downward tilting limiting hole; 212: Inner ring sealing convex ring; 213: Outer ring sealing concave ring; 221: Upward tilting limiting hole; 222: Inner ring sealing concave ring; 223: Outer ring sealing convex ring; 231: Connecting block; 232: Inclined 233: Limiting insert; 31: Elastic abutment arc plate; 32: Cover; 33: First mating plate; 311: First through hole; 312: Sealing ring groove; 321: Second through hole; 322: Coolant conduit; 323: Stepped limiting collar; 324: Coolant delivery hole; 41: Input cover; 42: Second sealing ring; 43: Feed expansion port; 51: Output cover; 52: Third sealing ring; 53: Discharge outlet; 61: Sealing gasket; 62: Separating connecting pipe. Detailed Implementation

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] The technical solutions provided by this utility model will be described in detail below with reference to the accompanying drawings and through embodiments. It should be noted that the descriptions of these embodiments are intended to aid in understanding this utility model, but do not constitute a limitation thereof. In some examples, because some implementation methods belong to existing or conventional technology, they are not described or are not described in detail.

[0030] Furthermore, the technical features described herein, or the steps in all the methods or processes disclosed herein, may be combined in any suitable manner in one or more embodiments, except for mutually exclusive features and / or steps. It will be readily understood by those skilled in the art that the order of steps or operations of the methods relating to the embodiments provided herein may also be altered. Any order in the drawings and embodiments is for illustrative purposes only and does not imply a requirement to follow a particular order unless explicitly stated otherwise.

[0031] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the objects being described and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, under reasonable circumstances (without contradiction), include both direct and indirect connections (linkages).

[0032] The following is a detailed explanation with reference to the accompanying drawings.

[0033] Example 1

[0034] This application provides a circular graphite heat exchange device, which includes a heat exchange main shell 1, a graphite block 2, a coolant cover 3, a bottom inlet cover 4, a top outlet cover 5, a connecting piece 6, an upper coolant inlet 7, and a lower coolant outlet 8.

[0035] according to Figure 1-8 In one specific embodiment, a graphite disc 2 capable of heat exchange between media is contained within the cavity of the heat exchange main housing 1, allowing for the transport of media at different temperatures through two separate, unconnected flow paths. Coolant covers 3 are detachably connected to both the upper and lower axial ends of the heat exchange main housing 1. A bottom inlet cover 4 and a top outlet cover 5 are respectively connected to the ends of the two coolant covers 3 furthest from the heat exchange main housing 1. Both the bottom inlet cover 4 and the top outlet cover 5 have a cover body 31 penetrating the coolant cover 3 and a connecting member 6 inserted into the bottom and top surfaces of the graphite disc 2, thus separating independent material channels within the coolant flow cavity defined by the cover body 31. An upper coolant inlet 7 and a lower coolant outlet 8, respectively connecting to the coolant flow cavity defined by the cover body 31, are inserted into the opposite sides of the two cover bodies 31 connected to the top and bottom ends of the heat exchange main housing 1.

[0036] Preferably, the graphite block 2 includes at least a first heat dissipation block 21 and a second heat dissipation block 22 that overlap each other. More preferably, the sides of the first heat dissipation block 21 and the second heat dissipation block 22 are fitted with limiting clips 23 that help limit their overlapping state. Preferably, both the first heat dissipation block 21 and the second heat dissipation block 22 are provided with material flow holes and coolant flow holes that are respectively distributed with the separating connecting pipe 62 and the coolant conduit 322. Specifically, the first heat dissipation block 21 is stacked on top of the second heat dissipation block 22, so that the top surface of the first heat dissipation block 21 abuts against the first connecting plate 32, and the separating connecting pipe 62 and the coolant conduit 322 are respectively inserted into the material flow holes and coolant flow holes from the top surface of the first heat dissipation block 21 to separate the output of material and the input of coolant. Preferably, the bottom surface of the second heat sink 22 abuts against another first connecting plate 32, such that both the separating connecting pipe 62 and the coolant conduit 322 are inserted from the bottom surface of the second heat sink 22 into the material flow hole and the coolant flow hole, respectively, to separate the material input and the coolant output. Preferably, the independent material channel means that the material flow hole and the coolant flow hole are not interconnected, and the upper and lower ports of the material flow hole are connected to the bottom input cover 4 and the top output cover 5 through the separating connecting pipe 62. Thus, the separating connecting pipe 62, which passes through the coolant guiding cavity defined by the cover 31, can separate the coolant in the coolant guiding cavity from the material in the input and output material flow holes, so that the material does not come into direct contact with the coolant. Preferably, the materials that need to be cooled in this application are mainly corrosive media with a certain amount of heat, such as hydrochloric acid, sulfuric acid, acetic acid, and phosphoric acid. The graphite spherical blocks 2 provided in this application can improve the stability and structural strength of the overlapping arrangement by setting the limiting clips 23. Furthermore, the staggered material flow holes and coolant flow holes ensure that the radially increasing grooves guarantee the conveying capacity and efficiency of both material and coolant, while also allowing the reverse-flowing coolant to fully transfer the heat dissipated by the material, thus ensuring a high heat dissipation rate. The staggered annular lattice arrangement ensures that any material flow hole is surrounded by multiple coolant flow holes, thereby improving the adequacy of heat exchange.

[0037] Preferably, the first heat sink 21 has a plurality of downwardly inclined limiting holes 211 spaced apart circumferentially on its side near the second heat sink 22. Preferably, the bottom surface of the first heat sink 21 facing the second heat sink 22 is provided with an inner sealing protrusion 212 and an outer sealing concave ring 213. Preferably, the second heat sink 22 has a plurality of upwardly inclined limiting holes 221 spaced apart circumferentially on its side near the first heat sink 21. Preferably, the top surface of the second heat sink 22 facing the first heat sink 21 is provided with an inner sealing concave ring 222 and an outer sealing protrusion 223 respectively adapted to the inner sealing protrusion 212 and the outer sealing concave ring 213. Preferably, the limiting clip 23 includes a connecting block 231, two inclined limiting pins 232 aligned and installed on the surfaces of the connecting block 231 facing the first heat sink 21 and the second heat sink 22, and an elastic abutment plate 233 that elastically limits the position of the connecting block 231 in the heat exchange main shell 1. The first heat sink 21 and the second heat sink 22 configured in this application can limit the overlap alignment accuracy while ensuring the stability of the overlap by using the mutually matched inner sealing convex ring 212, inner sealing concave ring 222, outer sealing concave ring 213, and outer sealing convex ring 223. In particular, the mutually fitting S-shaped concave and convex ring surfaces can effectively limit the two abutting parts and prevent them from shifting laterally at will, thereby ensuring the alignment accuracy of the material flow holes and coolant flow holes inside the first heat sink 21 and the second heat sink 22. This avoids misalignment and reduces the minimum cross-sectional size of the through hole cavity, thus ensuring the smooth flow and flow capacity of materials and coolant. This application sets both the material flow holes and coolant flow holes as vertical through holes, thereby avoiding the flow fluctuation impact that may occur when the coolant flows laterally, further improving the connection stability. In addition, this application also provides multiple limiting clips 23 on the outer side of the first heat sink 21 and the second heat sink 22 to ensure the connection stability of the overlapping assembly of the first heat sink 21 and the second heat sink 22. The two inclined limiting pins 232 provided by the limiting clips 23 can be fully inserted into the downward limiting hole 211 and the upward limiting hole 221 under the push of the elastic abutment arc plate 233, thereby limiting the stability of the first heat sink 21 and the second heat sink 22. The inclined limiting pins 232 can force the first heat sink 21 and the second heat sink 22 to maintain the tendency of moving towards each other, so as to ensure the stability and strength of the overlapping docking.

[0038] Preferably, the coolant cover 3 includes a cover body 31, a first mating plate 32, and a first sealing ring 33. Preferably, the first mating plate 32 is provided on the opening side of the coolant guide cavity defined by the cover body 31. Preferably, the first sealing ring 33, which can fill the cover-fastening connection gap between the cover body 31 and the heat exchange main shell 1, is embedded on the stepped annular surface of the cover body 31 used to define its cover position relative to the heat exchange main shell 1. The cover body 31 provided in this application can construct coolant guide cavities above and below the graphite block 2 while being connected to the heat exchange main shell 1, and the coolant can be guided and oriented to enter and exit the coolant flow hole through the first mating plate 32. Furthermore, the first mating plates 32 at both ends can also limit the graphite block 2 as a whole to ensure the stability of the graphite block 2 in the heat exchange main shell 1. The cover 31 provided in this application can provide a coolant guide cavity above the graphite disc 2, thereby improving the uniformity and flow intensity of the coolant dispersion to a certain extent, allowing the entire graphite disc 2 to be cooled by more uniform heat transfer. The first docking plate 32 provided in this application can cooperate with the cover 31 to allow the coolant to flow into the graphite disc 2 without gaps and in a generally uniformly dispersed manner, thereby improving the uniformity and effectiveness of heat transfer and reducing the defects of uneven heating and poor cooling efficiency. In particular, this application sets the coolant flow channel in a vertical state, so that the coolant can more fully and effectively absorb the heat inside the graphite disc 2, thereby improving the heat transfer efficiency. This application sets the flow direction of the coolant and the flow direction of the material to be opposite, so that the coolant can more effectively absorb heat during the counterflow process, thereby improving the heat exchange efficiency. In particular, the coolant flowing from top to bottom can ensure sufficient cooling of the material, so that the material can be cooled by the heat absorption structure that descends in stages. Top-down coolant has strong flow capacity and gravity-driven properties, which accelerates its flow and increases its flow rate. This effectively reduces coolant stagnation, allowing the coolant to maintain a lower temperature, fully and efficiently transfer heat, improve the coolant's continuous turnover rate, and ensure the coolant's overall heat exchange capacity.

[0039] Preferably, a plurality of first through holes 311 for inserting connecting parts 62 are provided on the end face of the cover 31, and a sealing ring groove 312 is also provided on the end face of the cover 31. Preferably, the first through holes 311 fit with the separating connecting parts 62, wherein a sealing ring capable of filling the assembly gap between the two is embedded in the inner wall of the cavity of the first through holes 311.

[0040] Preferably, a second through-hole 321 for inserting a partition connecting pipe 62 is provided on the plate body of the first docking plate 32. Preferably, a coolant conduit 322 is also inserted into the plate body of the first docking plate 32. Specifically, a plurality of second through-holes 321 are arranged circumferentially on the plate body of the first docking plate 32 in a manner that is distributed in the same way as the first through-holes 311. Specifically, a plurality of coolant conduits 322 are arranged circumferentially on the plate body of the first docking plate 32, and the multiple sets of circumferentially spaced coolant conduits 322 and second through-holes 321 are staggered in the radial direction of the plate surface of the first docking plate 32. Preferably, a stepped limiting collar 323 is also embedded on the surface of the first docking plate 32 that is away from the coolant guiding cavity defined by the cover 31 and contacts the graphite block 2, which can limit the relative assembly position between the first docking plate 32 and the graphite block 2. Preferably, the first docking plate 32 is further provided with circumferentially spaced coolant delivery holes 324 that connect the coolant guide cavity defined by the cover 31 and the cooling gap between the graphite block 2 and the heat exchange main shell 1. Preferably, one end of the coolant conduit 322 is arranged to extend out of the surface of the first docking plate 32 and be inserted into the graphite block 2.

[0041] Preferably, the input cover 41 of the bottom input cover 4 is detachably fastened to the cover 31 located at the axial lower end of the heat exchange main housing 1. Preferably, the surface of the input cover 41 that abuts against the cover 31 is also fitted with a second sealing ring 42 that can be partially pressed into the sealing ring groove 312. Preferably, the bottom surface of the input cover 41 is also connected to a feed expansion port 43 for inputting the material to be cooled.

[0042] Preferably, the output cover 51 of the top output cover 5 is detachably fastened to the cover 31 located at the axial upper end of the heat exchange main housing 1. Preferably, the surface of the output cover 51 that abuts against the cover 31 is also fitted with a third sealing ring 52 that can be partially pressed into the sealing ring groove 312. Preferably, the top surface of the output cover 51 is also connected to a discharge outlet 53 for discharging the cooled material.

[0043] Preferably, the first sealing ring 33, the step limiting collar 323, the second sealing ring 42, and the third sealing ring 52 can also be manufactured using the same material as the graphite gasket, thereby ensuring the sealing performance while ensuring the structural strength and stability of the sealing component, and especially having strong corrosion resistance.

[0044] Preferably, the connecting member 6 includes a sealing gasket 61 embedded in the opening surfaces of the bottom input cover 4 and the top output cover 5, and a partition connecting tube 62 inserted into the sealing gasket 61 with an annular dot matrix.

[0045] Preferably, the upper coolant inlet 7 is located on the upper left and is used for inputting coolant. Preferably, the lower coolant outlet 8 is located on the lower right and is used for outputting coolant. More preferably, opposite sides refer to two points on the outer sides of two coaxial but horizontally different covers 31 that are not on the same vertical line. In particular, this application refers to the left and right sides of the cover 31, so that coolant can be input from the left and output from the right, thereby enabling the fluid flow in the multiple parallel channels of the entire internal cavity environment to have a relatively uniform comprehensive flow force. For example, the channel inlet near the upper coolant inlet 7 has a larger input flow force, and the channel outlet near the lower coolant outlet 8 has a larger output flow force. The sum of the input and output flow forces of the parallel channels at different positions is approximately uniform, thereby improving the uniformity of the dispersed flow of coolant in several parallel channels composed of coolant flow holes to a certain extent, so as to improve the uniformity of heat transfer.

[0046] This utility model is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this utility model. However, regardless of any changes in shape or structure, any technical solution falling within the scope of the claims of this utility model is within the protection scope of this utility model. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. Throughout the text, features introduced by "preferred" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A graphite block type heat exchange device, comprising a heat exchange main shell (1) capable of containing a graphite block (2), characterized in that, cooling liquid covers (3) are detachably connected to the axial upper end and the axial lower end of the heat exchange main shell (1), and the ends of the two cooling liquid covers (3) away from the heat exchange main shell (1) are respectively connected with a bottom input cover (4) and a top output cover (5), a communication piece (6) penetrating the cover body (31) of the cooling liquid cover (3) and inserted on the bottom surface and the top surface of the graphite block (2) is arranged in the cover cavity of the bottom input cover (4) and the top output cover (5), so as to divide independent material passages in the cooling liquid flow guide cavity defined by the cover body (31).

2. The graphite block heat exchange apparatus of claim 1, wherein The cooling liquid cover (3) comprises a cover body (31), a first butt joint plate (32) and a first sealing ring (33), wherein, the opening side of the cooling liquid flow guide cavity defined by the cover body (31) is provided with the first butt joint plate (32), and the cover body (31) is used to define the stepped ring surface of the cover setting position relative to the heat exchange main shell (1), and the first sealing ring (33) capable of filling the cover buckle connection gap between the cover body (31) and the heat exchange main shell (1) is embedded on the stepped ring surface.

3. The graphite block heat exchange apparatus of claim 2, wherein A plurality of first through insertion holes (311) for inserting the separation communication pipe (62) are dot matrix arranged on the end surface of the cover body (31), and a sealing ring groove (312) is also arranged on the end surface of the cover body (31).

4. The graphite block heat exchange apparatus of claim 3, wherein A second through insertion hole (321) for inserting the separation communication pipe (62) is arranged on the plate body of the first butt joint plate (32), and a cooling liquid guide pipe (322) is also inserted on the plate body of the first butt joint plate (32), wherein, a plurality of the second through insertion holes (321) are circumferentially spaced apart on the plate body of the first butt joint plate (32); a plurality of the cooling liquid guide pipes (322) are circumferentially spaced apart on the plate body of the first butt joint plate (32), and a plurality of groups of circumferentially spaced apart cooling liquid guide pipes (322) and second through insertion holes (321) are staggered distributed in the radial direction of the plate surface of the first butt joint plate (32).

5. The graphite block heat exchange apparatus of claim 4, wherein The surface of the first butt joint plate (32) away from the cooling liquid flow guide cavity defined by the cover body (31) and in contact with the graphite block (2) is further embedded with a stepped limiting sleeve ring (323) capable of limiting the relative assembly position between the first butt joint plate (32) and the graphite block (2); The plate body of the first butt joint plate (32) is further circumferentially spaced apart and provided with a cooling liquid delivery hole (324) for connecting the cooling liquid flow guide cavity defined by the cover body (31) and the cooling gap between the graphite block (2) and the heat exchange main shell (1).

6. The graphite block heat exchange apparatus of claim 5, wherein The communication piece (6) comprises a sealing gasket plate (61) embedded on the opening surface of the bottom input cover (4) and the top output cover (5), and a separation communication pipe (62) dot matrix inserted on the sealing gasket plate (61).

7. The graphite block heat exchange apparatus of claim 6, wherein The opposite sides of the two covers (31) connected to the top end and the bottom end of the heat exchange main shell (1) are respectively inserted with an upper cooling liquid inlet (7) and a lower cooling liquid outlet (8) capable of communicating with the cooling liquid flow cavity.

8. The graphite block heat exchange apparatus of claim 7, wherein The graphite round block (2) comprises at least a first heat dissipation block (21) and a second heat dissipation block (22) which are overlapped with each other, and the side of the first heat dissipation block (21) and the second heat dissipation block (22) is inserted with a limiting piece (23) capable of assisting in defining the overlapping state of the two.

9. The graphite block heat exchange apparatus of claim 8, wherein The side of the first heat dissipation block (21) close to the second heat dissipation block (22) is provided with a plurality of downward limiting holes (211) which are spaced apart in a ring shape, The bottom surface of the first heat dissipation block (21) facing the second heat dissipation block (22) is provided with an inner ring sealing convex ring (212) and an outer ring sealing concave ring (213).

10. The graphite block heat exchange apparatus of claim 9, wherein The side of the second heat dissipation block (22) close to the first heat dissipation block (21) is provided with a plurality of upward limiting holes (221) which are spaced apart in a ring shape, The top surface of the second heat dissipation block (22) facing the first heat dissipation block (21) is provided with an inner ring sealing concave ring (222) and an outer ring sealing convex ring (223).

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